We divide 33298182 by 645
The aim is to understand the frequency of 645 in 33298182.

Step 1:
645 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 645

Advancing to step 2:
33 divided by 645 is 0 with a remainder of 33.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 33, we get 33.
Include the next digit (2) from the dividend after 33, then repeat: 332 / 645

Let's proceed to step 3:
When dividing 332 by 645, we get 0 with a remainder of 332.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 332, we get 332.
Take the next digit (9) from the dividend and append it to 332, then repeat: 3329 / 645

Advancing to step 4:
3329 divided by 645 is 5 with a remainder of 104.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 3225 from 3329 leaves us with 104.
Include the next digit (8) from the dividend after 104, then repeat: 1048 / 645

Moving on to step 5:
645 can be fit into 1048 1 times, resulting in a remainder of 403.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
If we subtract 645 from 1048, we get 403.
Bring next digit (1) of the dividend behind the 403 and repeat the process: 4031 / 645

Advancing to step 6:
If we divide 4031 by 645, we get 6 and a remainder of 161.
Put 6 as the next digit of the answer. 
Result so far: 516.0
The remainder is 161 after subtracting 3870 from 4031.
Take the next digit (8) from the dividend and append it to 161, then repeat: 1618 / 645

On to step 7:
1618 divided by 645 is 2 with a remainder of 328.
Record the quotient 2 as the next digit in the result. 
Result so far: 5162.0
The remainder is 328 after subtracting 1290 from 1618.
Fetch the next digit (2) from the dividend, attach it to 328 and continue: 3282 / 645

Advancing to step 8:
645 goes into 3282 5 times with a remainder of 57.
The number 5 becomes the next digit in our result. 
Result so far: 51625.0
The remainder is 57 after subtracting 3225 from 3282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 9:
The number 645 fits into 570 0 times, leaving a remainder of 570.
The number 0 becomes the next digit in our result. 
Result so far: 51625.0
Subtract 0 from 570 to get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Let's proceed to step 10:
5700 divided by 645 is 8 with a remainder of 540.
Record the quotient 8 as the next digit in the result. 
Result so far: 51625.08
Subtracting 5160 from 5700 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 11:
5400 divided by 645 is 8 with a remainder of 240.
Put 8 as the next digit of the answer. 
Result so far: 51625.088
The remainder is 240 after subtracting 5160 from 5400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

After the division, we end up with 51625.088 and a remainder of 0.024.